1. (P/V) ratio = (S-V)/S = (F+P)/S
MOS = P/(P/V) ratio
at BEP P=0 , S = S(BEP)
2. MRR in shaper machine = fdln
f = feed , d = depth of cut , l = length , n = speed
3. sin3t = 3sint - 4sin^3t
4. Austenite (FCC) is softest phase of Iron .
5. Machining of reactive metals mostly by EBM (electro beam machining)
6. Diamond reveting is best for bridges and trusses. they are very economical too.
7. Pretension increases bolt stiffness.
8. Mode = 3 Median - 2 Mean
9. Static load carrying capacity = It is load which corresponds to a total permanent deformation of balls and races , at the most heavily stressed point of contact , equal to 0.001 of the ball dia.
10. If machine mounted on spring , there will be no damping. Value of z(zeeta) will be zero.
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